/*
   Copyright 2009 Abdulla Abdurakhmanov (abdulla@latestbit.com)
   Original sources are available at www.latestbit.com

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package org.latestbit.smartobjects.encrypters;

import java.nio.ByteBuffer;
import java.security.GeneralSecurityException;
import org.latestbit.smartobjects.io.ResizableByteBuffer;

/**
 * Base interface provides to common encryption algorithm methods 
 * @author abdulla-a
 */
public interface IDataEncrypter {
	/**
	 * Encrypts input buffer
	 * @param inputData input original byte buffer
	 * @param output output encrypted byte buffer
	 * @throws GeneralSecurityException
	 */
	public void encrypt(ByteBuffer inputData, ResizableByteBuffer output) throws GeneralSecurityException;
	
	/**
	 * Decrypts input buffer
	 * @param encryptedData input encrypted byte buffer
	 * @param output output original byte buffer
	 * @throws GeneralSecurityException
	 */
	public void decrypt(ByteBuffer encryptedData, ResizableByteBuffer output) throws GeneralSecurityException;
	
	/**
	 * Gets implementation algorithm name
	 * @return algorithm name
	 */
	public String getAlgorithm();
}
